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Rktmobilezviz

use formula,

d = st

where

d = distance = ?

s = speed = 35 kph

t = time = 3 hr

now solve for d,

d = st

d = 35(3)

d = 105 km

#2.

d = distance = ?

s = speed = 42 m/s

t = time = 5 s

now solve for d,

d = st

d = 42(5)

d = 210 m

#3.

d = distance = 45 km

s = speed = ?

t = time = 15 h

now solve for s,

s = d/t

s = 45/15

s = 3 kph